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Message-ID: <20160115032914.GA31562@rob-hp-laptop>
Date:	Thu, 14 Jan 2016 21:29:14 -0600
From:	Rob Herring <robh@...nel.org>
To:	Andrew Duggan <aduggan@...aptics.com>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Jiri Kosina <jikos@...nel.org>,
	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Christopher Heiny <cheiny@...aptics.com>,
	Stephen Chandler Paul <cpaul@...hat.com>,
	Vincent Huang <vincent.huang@...synaptics.com>,
	Chris Healy <cphealy@...il.com>,
	Andrey Gusakov <andrey.gusakov@...entembedded.com>,
	devicetree@...r.kernel.org
Subject: Re: [PATCH] Input: DT binding: Change touchscreen to touch for use
 with touchscreens and touchpads

On Thu, Jan 14, 2016 at 03:42:45PM -0800, Andrew Duggan wrote:
> These generic touchscreen bindings can also be used for touchpads.
> Instead of creating new generic bindings this patch just renames then to
> touch-*.
> 
> Signed-off-by: Andrew Duggan <aduggan@...aptics.com>
> ---
> It was suggested that for the synaptics-rmi4 driver I use the generic
> bindings. But, since the rmi4 driver is used for both touchpads and
> touchscreens it seemed weird to have a touchpad with a parameter
> of touchscreen-inverted-y. I changed all of the references to it in the
> source tree. But, I realize this could cause a backwards compatibilty
> issue with device trees which are not included in the kernel.

It does and you cannot do this. Live with the weirdness or support both 
names...

Rob

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